YY/T 1534-2017 in English

VALID

Measuring methods for optical radiation safety classification of medical LED equipment

Issued on:2017-03-28
Implemented on:2018-04-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	YY/T 1534-2017
Document status:	VALID
Title in English:	Measuring methods for optical radiation safety classification of medical LED equipment
Title in Chinese:	医用LED设备光辐射安全分类的检测方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2017-03-28
Implemented on:	2018-04-01
ICS Classification:	11.040.99-Other medical equipment
Professional Classification:	YY-Pharmaceutics
Related Keywords:	optical radiation safety classification medical led equipment optical radiation safety medical led equipment introduction interpretation testing equipment
Related Topics:	Classification of material testing methods "Optical Radiation Safety Test Methods for Semiconductor Lighting Equipment and Systems" Fluorescence detection led Photoelectric detection equipment Radiation Detection Equipment class testing equipment Three types of medical examination Type detection equipment Classification of testing equipment Detection equipment method Equipment for detecting nuclear radiation Optical Radiation Safety Classification detection GB/1534-2017 GB/T1534-2017 Device detection method Detection equipment type Northeast Radiation Detection Classification of detection methods GB/T 1534-2017 led detection Medical testing method GBT1534-2017 Radiation detection equipment Radiation Intensity LED Equipment Medical pure water equipment Testing equipment classification Spectral detection method types Nuclear radiation detection methods Water quality radiation testing Radiation panel detection yy1534-2017 yy/t 1534 yy/t 1534-2017

本标准规定了波长范围在200nm到3000nm之间、具有一个或多个光源的医用LED设备的光辐射安全检测方法。
本标准适用于医用LED设备。
本标准不适用于眼科仪器、婴儿光疗设备。

Introduction

Interpretation of the core content of the standard

This standard establishes a systematic detection system for the optical radiation safety of medical LED equipment. The main technical points include:

Technical dimensions	Key requirements	Detection methods
Wavelength range	200-3000nm	Measurement by wavelength
Classification basis	IEC60601-2-57 risk group	Comparison of achievable emission values
Core parameters	Irradiance/Radiance	Direct/Indirect Measurement Methods

In-depth Analysis of Measurement Technology

1. Irradiance Measurement Specifications

Using a 7mm aperture diaphragm, the field of view diaphragm size is calculated according to the formula F=α×r+D, where α is fixed at 1.4rad. Principles for selecting measurement positions:

Divergent light source: the point closest to human contact
Convergent light source: at the convergence point
Collimated light source: any point on the optical axis

2. Innovation in radiance measurement

Determine the measurement parameters by the apparent light source subtending angle (α=1.7-100mrad):

Case: The spot size of a tubular light spot (20mm long × 3mm diameter) is taken as the average value (20+3)/2=11.5mm

Suggestions for the implementation of the standard

Laboratory configuration: Testing equipment that complies with Appendix B of GB/T 20145-2006 is required
Personnel protection: Protective glasses and other equipment must be equipped, and the ambient illumination is <0.5lx
Measurement process: Preheat for 30 minutes → Determine the maximum emission position → Gradual measurement (starting from Class 0 hazards and verifying step by step)

Multi-light source processing principle

When multiple light sources act on the same part, it must meet the following requirements: ∑(E/L)_i/Limit_i≤1. In practical applications, it should be noted that:

Light sources used asynchronously are evaluated separately
Light sources of different hazard types are not calculated superimposed

More samples: YD/T 3934-2021 DL/T 368-2010 JJG 21-2008

Sample only — not a preview of YY/T 1534-2017

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